Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/22733
Title: Decomposition of additive-free formic acid using a pd/c catalyst in flow: Experimental and cfd modelling studies
Authors: Hafeez, Sanaa 
Sanchez, Felipe 
Al-Salem, S. M. 
Villa, Alberto 
Manos, George 
Dimitratos, Nikolaos 
Constantinou, Achilleas 
Major Field of Science: Natural Sciences
Field Category: Chemical Sciences
Keywords: Computational fluid dynamics (CFD);Formic acid decomposition;Green chemistry;H2 production;Mi-croreactors;Pd catalyst
Issue Date: 1-Mar-2021
Source: Catalysts, 2021, vol. 11, no. 3, articl. no. 341
Volume: 11
Issue: 3
Journal: Catalysts 
Abstract: The use of hydrogen as a renewable fuel has gained increasing attention in recent years due to its abundance and efficiency. The decomposition of formic acid for hydrogen production under mild conditions of 30◦ C has been investigated using a 5 wt.% Pd/C catalyst and a fixed bed microreactor. Furthermore, a comprehensive heterogeneous computational fluid dynamic (CFD) model has been developed to validate the experimental data. The results showed a very good agreement between the CFD studies and experimental work. Catalyst reusability studies have shown that after 10 reactivation processes, the activity of the catalyst can be restored to offer the same level of activity as the fresh sample of the catalyst. The CFD model was able to simulate the catalyst deactivation based on the production of the poisoning species CO, and a sound validation was obtained with the experimental data. Further studies demonstrated that the conversion of formic acid enhances with increasing temperature and decreasing liquid flow rate. Moreover, the CFD model established that the reaction system was devoid of any internal and external mass transfer limitations. The model developed can be used to successfully predict the decomposition of formic acid in microreactors for potential fuel cell applications.
URI: https://hdl.handle.net/20.500.14279/22733
ISSN: 20734344
DOI: 10.3390/catal11030341
Rights: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution
Type: Article
Affiliation : London South Bank University 
Cardiff University 
Kuwait Institute for Scientific Research 
Università degli Studi di Milano 
University College London 
Alma Mater Studiorum Universita di Bologna 
Cyprus University of Technology 
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